It’s not easy for the expert to ______ pig flu.in humans from regular human seasonal influenza.
Theboxofrubbers____white.
Noneofthatmoneyonthetable____mine.
Ithinkmaths____veryinteresting.
All that I need _____ a large sum of money with which to buy my wife a diamond ring.
More than one hundred students ___ been sent to Japan since 2000.